heres an example of proxy packet encrypt and decrypt source: its just for attack packets:
its a games my friend and i play before:
he wrote this when he is sitll on online game:
the Client2Server packet:
Code:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.IO;
namespace Lipsum
{
public class Packet_Client2Server
{
public static byte[] logpck1= new byte[68];
public static int user1id=0;
public static byte[] logpck2= new byte[68];
public static int nblog=0;
public static bool DoSendPacket(byte[] Buffer,int Length, int id)
{
bool SendPacket=true;
#region Multi hit
if((Buffer[2]==21 && Buffer[1]==7 && Form1.frm.ServerVersion<98) || (Buffer[2]==17 && Buffer[1]==7 && Form1.frm.ServerVersion>=98))
{
if(Form1.frm.trackBarHitInterval.Value>0)
{
SendAttack sdat=new SendAttack(Buffer,id);
new Thread(new ThreadStart(sdat.DoSendAttack)).Start();
}
else
{
for(int i = 0;i<=(int)Form1.frm.nbhit.Value;i++)
{
Form1.frm.gSockDst2[id].SendData(Buffer,7);
}
}
}
#endregion
#region WalkTeleport
if(Buffer[1]>=7 && Buffer[2]==212)
{
int i1,i2,i3,i4,x1,y1;
i1=Buffer[3];
i2=Buffer[4];
i3=Buffer[5];
i4=Buffer[6];
x1=i1^93;
y1=i1^i2^188;
CTeleport.TeleportMap(x1,y1);
}
if(Buffer[1]==7 && Buffer[2]==212)
{
int i1,i2,i3,i4,x1,y1,x2=0,y2=0,ti;
int depxy=1;
i1=Buffer[3];
i2=Buffer[4];
i3=Buffer[5];
i4=Buffer[6];
x1=i1^93;
y1=i1^i2^188;
ti=i2^i3;
ti=ti&112;
ti=ti|131;
switch(ti)
{
case 131:
x2=x1+depxy;
y2=y1;
break;
case 243:
x2=x1+depxy;
y2=y1+depxy;
break;
case 227:
x2=x1+0;
y2=y1+depxy;
break;
case 195:
x2=x1-depxy;
y2=y1+0;
break;
case 179:
x2=x1-depxy;
y2=y1-depxy;
break;
case 163:
x2=x1+0;
y2=y1-depxy;
break;
case 147:
x2=x1+depxy;
y2=y1-depxy;
break;
case 211:
x2=x1-depxy;
y2=y1+depxy;
break;
}
if(x2!=0 && y2!=0)
{
CTeleport.TeleportMap(x2,y2);
if(Form1.frm.checkBoxWalkTeleport.Checked)
{
CTeleport.Teleport(x2,y2,id);
CTeleport.Teleport2(x2,y2,id);
}
}
}
#endregion
/*if(Buffer[0]==195 && Buffer[1]==68)
{
if(nblog==0)
{
logpck1=Buffer;
user1id=id;
}
if(nblog==1)
{
Form1.frm.gSockDst2[user1id].SendData(logpck1,68);
Form1.frm.gSockDst2[id].SendData(Buffer,68);
}
nblog++;
Form1.frm.label28.Text=nblog.ToString();
if(nblog==2)
nblog=0;
SendPacket=false;
}
else
{
nblog=0;
Form1.frm.label28.Text=nblog.ToString();
}*/
return SendPacket;
}
public Packet_Client2Server()
{
//
// TODO*: ajoutez ici la logique du constructeur
//
}
}
}
SERVER 2 client:
Code:
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Threading;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.IO;
namespace Lipsum
{
/// <summary>
/// Description résumée de Packet_Server2Client.
/// </summary>
public class Packet_Server2Client
{
public static bool DoReceivePacket(byte[] Buffer,int Length, int id)
{
byte i1,ii1;
byte i2,ii2;
int PosiMV,aPosiMV;
bool SendPacket=true;
bool pk=false;
byte[] AttakPacket={193,7,17,0,0,0,0};
int CurrentUser=1;
for(int i =0;i<Form1.frm.NbUsers;i++)
{
if(Form1.frm.Users[i].IDSock3==id)
CurrentUser=i;
}
if(Form1.frm.ServerVersion<98)
AttakPacket[2]=21;
#region Vault Hack
if(Buffer[1]==4 && Buffer[2]==131 && Buffer[3]==1 && Form1.frm.chkVaultHack.Checked)
{
Buffer[3]=0;
Cons.Print("Vault Hack applied",id);
}
#endregion
#region Player ID
if(Buffer[1]==12 && Buffer[2]==241)
{
Form1.frm.Users[CurrentUser].IDPlayer1=Buffer[5];
Form1.frm.Users[CurrentUser].IDPlayer2=Buffer[6];
}
#endregion
#region GM chars
if(Buffer[1]==243)
{
/* Buffer[19]=8;
Buffer[45]=8;*/
}
#endregion
#region Attack Packet Key
int Code1=0,Code2=0,Code3=0,Code4=0;
Code1=152;Code2=36; Code3=242;Code4=104;
if(Form1.frm.ServerVersion<98)
{
Code1=156;Code2=32;Code3=246;Code4=108;
}
#endregion
#region AK V4 - kill mobs when they reappear
if(Form1.frm.chkAKV4.Checked && (Buffer[2]==20))
{
for(int nbak4=0;nbak4<Buffer[3];nbak4++){
i1=Buffer[4+nbak4*2];
i2=Buffer[5+nbak4*2];
if(!(i1==Form1.frm.Users[CurrentUser].IDPlayer1 && i2==Form1.frm.Users[CurrentUser].IDPlayer2))
{
AttakPacket[3]=(byte)(i1 ^ Code1);
AttakPacket[4]=(byte)(i1 ^ i2 ^ Code2);
AttakPacket[5]=(byte)(i1 ^ i2 ^ Code3);
AttakPacket[6]=(byte)(i2 ^ (Code4));
Cons.Print("AK v4 : "+i1.ToString() + " "+i2.ToString(),id);
if(Form1.frm.trackBarHitInterval.Value>0)
{
SendAttack sdat=new SendAttack(AttakPacket,id);
new Thread(new ThreadStart(sdat.DoSendAttack)).Start();
}
else
{
for(int i = 0;i<=(int)Form1.frm.nbhit.Value;i++)
{
Form1.frm.gSockDst2[id].SendData(AttakPacket,7);
}
}
}
}
}
#endregion
#region AK V3 - movement detection
if(Form1.frm.checkBox1.Checked && ((Buffer[1]==8 && Buffer[2]==16 && Form1.frm.ServerVersion<98) || (Buffer[1]==8 && Buffer[2]==212 && Form1.frm.ServerVersion>=98)))
{
PosiMV=0;
i1=Buffer[PosiMV+3];
i2=Buffer[PosiMV+4];
PosiMV+=6;
if(!(i1==Form1.frm.Users[CurrentUser].IDPlayer1 && i2==Form1.frm.Users[CurrentUser].IDPlayer2))
{
AttakPacket[3]=(byte)(i1 ^ Code1);
AttakPacket[4]=(byte)(i1 ^ i2 ^ Code2);
AttakPacket[5]=(byte)(i1 ^ i2 ^ Code3);
AttakPacket[6]=(byte)(i2 ^ (Code4));
Cons.Print("AK v3 : "+i1.ToString() + " "+i2.ToString(),id);
if(Form1.frm.trackBarHitInterval.Value>0)
{
SendAttack sdat=new SendAttack(AttakPacket,id);
new Thread(new ThreadStart(sdat.DoSendAttack)).Start();
}
else
{
for(int i = 0;i<=(int)Form1.frm.nbhit.Value;i++)
{
Form1.frm.gSockDst2[id].SendData(AttakPacket,7);
}
}
}
}
#endregion
#region ServerSide Movement - Corrects teleport bug
if((Form1.frm.ServerVersion<98 && Buffer[1]==8 && Buffer[2]==16 && Buffer[3]==Form1.frm.Users[CurrentUser].IDPlayer1 && Buffer[4]==Form1.frm.Users[CurrentUser].IDPlayer2) ||
(Form1.frm.ServerVersion>=98 && Buffer[1]==8 && Buffer[2]==212 && Buffer[3]==Form1.frm.Users[CurrentUser].IDPlayer1 && Buffer[4]==Form1.frm.Users[CurrentUser].IDPlayer2))
{
//CTeleport.TeleportMap(Buffer[5],Buffer[6]);
SendPacket=false;
}
#endregion
#region AK V1
PosiMV=0;
if(Form1.frm.ChkAK.Checked && Buffer[0]==194)
{
pk=Form1.frm.chkPK.Checked && Buffer[PosiMV+3]==18;
if( Buffer[PosiMV+3]==19 || pk )
{
aPosiMV=PosiMV+5;
for(int j=0;j<(int)Buffer[aPosiMV-1];j++)
{
if(pk)
PosiMV=aPosiMV+j*21;
else
PosiMV=aPosiMV+j*12;
if ((((int)Buffer[PosiMV+2])<150) || (pk))
{
i1=Buffer[PosiMV];
i2=Buffer[PosiMV+1];
ii1=Buffer[PosiMV+8];
ii2=Buffer[PosiMV+9];
AttakPacket[3]=(byte)(i1 ^ Code1);
AttakPacket[4]=(byte)(i1 ^ i2 ^ Code2);
AttakPacket[5]=(byte)(i1 ^ i2 ^ Code3);
AttakPacket[6]=(byte)(i2 ^ (Code4));
if(CTeleport.IsAreaFree(ii1,ii2) || !(Form1.frm.AK2.Checked))
{
Cons.Print("AK v1 : "+i1.ToString() + " "+i2.ToString(),id);
if(Form1.frm.chktelmonster.Checked)
{
CTeleport.Teleport(ii1,ii2,id);
CTeleport.Teleport2(ii1,ii2,id);
}
if(Form1.frm.trackBarHitInterval.Value>0)
{
SendAttack sdat=new SendAttack(AttakPacket,id);
new Thread(new ThreadStart(sdat.DoSendAttack)).Start();
}
else
{
for(int i = 0;i<=(int)Form1.frm.nbhit.Value;i++)
{
Form1.frm.gSockDst2[id].SendData(AttakPacket,7);
}
}
}
}
}
}
}
#endregion
#region Ignored Packets
if(Buffer[0]==194 && Buffer[PosiMV+3]==19 && Form1.frm.checkBoxIgnore3.Checked)
SendPacket=false;
if(Buffer[0]==194 && Buffer[PosiMV+3]==18 && Form1.frm.checkBoxIgnore3.Checked)
SendPacket=false;
if(Buffer[1]==8 && Buffer[2]==16 && Form1.frm.ServerVersion<98 && Form1.frm.checkBoxIgnore2.Checked)
SendPacket=false;
if(Buffer[1]==8 && Buffer[2]==212 && Form1.frm.ServerVersion>=98 && Form1.frm.checkBoxIgnore2.Checked)
SendPacket=false;
if(Buffer[1]==7 && Buffer[2]==24 && Form1.frm.checkBoxIgnore1.Checked)
SendPacket=false;
#endregion
return SendPacket;
}
public Packet_Server2Client()
{
//
// TODO*: ajoutez ici la logique du constructeur
//
}
}
}
